Head for insulating-machines.



No. 893,939. PATENTED JULY 21,1908. V. ROYLB.

HEAD FOR INSULATING MACHINES.

APPLIOATIOH IILBD DEC. 30, 1904.

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fill/00hr No. 893,939. PATENTED JULY 21,1908.

v. ROYLE.

HEAD FOR INSULATING MACHINES.

. APPLICATION FILED DEC. 30, 1904.

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v UNITED STATES PATENT OFFICE.

VERNON ROYLE, OF PATERSON, NEW JERSEY.

HEAD FOR INSULATING-MACHINES.

. Toill whom it may concern: '5

, e it known that I, VERNON RoYLE, a citizen of the United States, and resident of Paterson, in-the county of Passaic and State 5/ of New Jersey, have invented a new and useful Head for Insulatin -Machines, of which the following is a specification.

My invention relates to a head for insulating machines, the object being to provide for locating the inlet and outlet pi es for the cooling medium back'from the 'ace of the head;j.to provide forinterchan ing the cores and dies to suitdiffer ent' sizes wire or cable and for directing the wire or cable centrally along the interior ofthe core. I

In the accompanying drawings, Figure 1 is as top plan view of the head, Fig. 2 is a vertical section in the lane of the line AA of Fig 1, Fig. 3 is a l iorizontal central section, Fig. 4 is a vertical section in the plane of the line BB of Fig. 1, Fig 5 is a similar View showing a core and die suitablefor a small wire or cable, Fig. 6 is an endv iew'in detail of the removable support for the wire uide, and Fig. 7 is a sectional view in deta of a modified form of die. I

The tube into which the plastic insulating Specification of Letters Patent.

material is forced bywell known or approved means, not shown, is denoted by 1 and the' die chamber 2 extends at right angles to the tube 1 and ma be formed integral therewith. The interior 0 the tube 1 is in 0 en communication with the interior of the ie chamber, the interior wall of the tube 1 bein referably tapered toward the interior 0 t e die chamber as shown at 3.- The die holder consists of a ring 4 held in osition within the die chamber 2 by an annu ar nut'5 screwed into the chamber and pressing the holder 4 against the base of the chamber and radial screws 6 seated in the wall of the chamber and bearing against the periphery of i the holder. The holder-4 carries within it the die 7 with its liner 8. l

The core (Figs. 1 to 4) is denoted by 9. 'It is hollow and is screwed into a hollow holder 10 which in turn is screwed into a hollow support 11 seated in the wall of the tube 1 opposite the die chamber. The outer ortion of the sup ort 11 overlaps the face 0 the boss 12 on t e tube 1 and the said su port is tapered inwardly'intermediate of-t e inner and outer ends, as shown at- 13, to .form a seat 1 The xterior face of the wall of the tight joint with the'tapered portion 14 of its Patented July a1, 1908.

Application filed December 30, 1904. Serial No. 238,941.

groove 15, which is covered by aring 16 snugly engaged with the exterior of the chamber, the ring 16 being provided with a groove 17 on its interior which is made to register with the groove in the wall of the chamber to complete a conduit extending entirely around. the

threaded sockets 20, 21, in the wall of thetubes 1 for the attachmentof inlet and outlet pipes of any well known or approved form for conducting the coolin medium to and from the head. The oondults 18 and 19 also communicate with the annular passage around the die chamber through branch passages 22,

23, ta ped in the bottom of the groove 15 be-..

fore t e 'ring'1'6 is placed in position, The outer ends of the conduits 18 and 19 are screw threaded, as shown at 24, 25, to receive stop being circu ated and for removal to clean the conduits when required.

The location of the inlet and outlet sockets 20,21, back from the die chamber, leaves the latter free from exterior obstruction and 'convenient for the manipulation of the insulated- Wire or cable passing from it, while the structure described every portion 0 the cooling medium conduit. To lead the wire or cable centrally to the interior of. the core 9 free from kinks, I provide a guide pulley 26 having a V-sha 'ed groove 27 in its periphery and mounte freely between the arms 28, 29, projecting from a hub 30. The hub 30'is hinged between lugs 31, 32, projecting outward y the end of a split rmg 33 fitted to be crowded into the hollow base of the core support 11.

The split ring 33 has a depending portion 34 against which an adjusting s'crew'35 bears,

the said screw being seated in an arm 36 depending from the hub 30. By turning the screw in and out, the pulley 26 is raised and lowered to adjust the wire or cable pre cisely along the axis of the core.

provides for gaining access to I referably about plugs when thecooling medium is to rotate from By providing difierent dies of the same maximum diameter but with interiors of various sizes, (see, for example, the die 37, Fig.

5, and the'pdie 38, Fig. 7,) and cores to correspond (see the long tapered core 39, F1 5) with its base-correspondingto the base 0 the core 9, the same die holder 4 and same core holder may be used in insulating wires or cables of varying sizes and for varying the thickness of the insulatin 'coat. A change in the thickness of the die lining (see the thick lining 40, Fig. 7) may also be resorted to to vary the relation of the interior wall of the die to the exterior wall of the core,- without changing the body of the die. It is 'obvi-- sage for the circulating medium and thence rearwardly along the wall of said. chamber to suitable inlet and outlet i es.

2.- An insulating head liaving a passage around its die chamber for receiving a circulating medium, conduits tapped in the face of the head andextending along the wall thereof to and connecting with the said passage for the circulating medium, and thence extending lon itudinally back along the cham-\ her, the 'sai insulating head beingprovided with branch. conduits ta ped therem to connect the said longitudina conduits with suitable inlet and outlet pipes.

in to connect the said lon itudina in to connect the said lon a guir e 3. An insulating head having a passage around its die chamber for a circulating medium, a removable ring forming a cover for said passage, conduits tap ed in the face of said insulating head an .extendin back along its wall, the said insulating hea' being rovided with branchconduits tapped thereconduits with the said passage for t e circulating medium and with branch conduits tap ed there-. itudina conduits with suitable inlet and out et pipes. 4. The combination with the insulating head rovided with a die and hollow core, of ulle removably supported in the base of t e ho ow core and means for adjust ing the pulley toward and away from the axis of the core.

Y 5. The combination with the insulating head rovided with a die and hollow core, of a gui e ulley adjustably supported at the base of t e core, and a screw for adjusting the pulley.

In testimony, that I claim the foregoing as my invention, I have signed my .name in presence of two witnesses, this 9th day offDecember 1904.

VERNON BOYLE.-

Witnesses:

ELIAS Bnown KING, HEBER ROYLE. 

